Iipropati ze-Sodium Carboxymethyl cellulose kunye nezinto eziPhembelelayo kwi-CMC Viscosity

I-Sodium Carboxymethyl cellulose (CMC) yipolymer esetyenziswa ngokuqhelekileyo kwizicelo ezahlukeneyo zemizi-mveliso, kubandakanya ukutya, amayeza, iimveliso zokhathalelo lomntu, kunye nezinto zokucoca. I-derivative yamanzi e-soluble derivative ye-cellulose eveliswa yi-reaction ye-cellulose kunye ne-chloroacetic acid kunye ne-sodium hydroxide. I-CMC inomsebenzi omninzi kwaye inoluhlu olubanzi lweepropati ezenza ilungele izicelo ezahlukeneyo. Kweli nqaku, siza kuxubusha iimpawu zeCMC kunye nezinto ezichaphazela i-viscosity yayo.

Iipropati ze-CMC:

1. Ukunyibilika: I-CMC inyibilika kakhulu emanzini, nto leyo eyenza kube lula ukuyiphatha kunye nokusetyenziswa kwizicelo ezahlukeneyo. Iyakwazi ukunyibilika kwezinye izinyibilikisi eziphilayo, ezifana ne-ethanol kunye ne-glycerol, kuxhomekeke kwiqondo lokuthatha indawo.
2. I-Viscosity: I-CMC yipolymer ebonakala kakhulu enokuthi yenze iijeli kwiindawo eziphezulu. I-viscosity ye-CMC iphenjelelwa zizinto ezahlukeneyo, ezifana neqondo lokutshintshela, ukugxila, i-pH, ubushushu, kunye noxinzelelo lwe-electrolyte.
3. I-Rheology: I-CMC ibonisa ukuziphatha kwe-pseudoplastic, okuthetha ukuba i-viscosity yayo iyancipha ngokunyuka kwesantya sokucheba. Le propati iluncedo kwizicelo apho i-viscosity ephezulu iyadingeka ngexesha lokucubungula, kodwa i-viscosity ephantsi iyadingeka ngexesha lokusetyenziswa.
4. Uzinzo: I-CMC izinzile kuluhlu olubanzi lwe-pH kunye neemeko zobushushu. Ikwaxhathisa ukuthotywa kwe-microbial, eyenza ukuba ilungele ukusetyenziswa kwizicelo zokutya kunye neyeza.
5. Iimpawu zokwenza ifilimu: I-CMC inokwenza iifilimu ezibhityileyo, ezibhetyebhetye xa zomisiwe. Ezi filimu zineempawu ezintle zomqobo kwaye zinokusetyenziswa njengezinto zokugquma kwizicelo ezahlukeneyo.

Izinto ezinefuthe kwi-viscosity yeCMC:

1. I-Degree of substitution (DS): Iqondo lokutshintshwa yi-avareji yenani lamaqela e-carboxymethyl ngeyunithi ye-anhydroglucose kwi-molecule ye-cellulose. I-CMC ene-DS ephezulu ineqondo eliphezulu lokuthatha indawo, elikhokelela kwi-viscosity ephezulu. Oku kungenxa yokuba i-DS ephezulu ikhokelela kumaqela amaninzi e-carboxymethyl, okwandisa inani leemolekyuli zamanzi ezibotshelelwe kwipolymer.
2. Ugxininiso: I-viscosity ye-CMC iyanda ngokugxila okukhulayo. Oku kungenxa yokuba kwiindawo eziphakamileyo, kukho amakhonkco amaninzi epolymer, nto leyo ekhokelela kwinqanaba eliphezulu lokubanjwa kunye nokwanda kwe-viscosity.
3. i-pH: I-viscosity ye-CMC ichatshazelwa yi-pH yesisombululo. Kwi-pH ephantsi, i-CMC ine-viscosity ephezulu kuba amaqela e-carboxyl akwimo yawo yeprotonated kwaye anokunxibelelana ngamandla ngakumbi neemolekyuli zamanzi. Kwi-pH ephezulu, i-CMC ine-viscosity esezantsi ngenxa yokuba amaqela e-carboxyl akwimo yawo ye-deprotonated kwaye anonxibelelwano oluncinci kunye neemolekyuli zamanzi.
4. Ubushushu: I-viscosity ye-CMC iyancipha ngokunyuka kobushushu. Oku kungenxa yokuba kumaqondo obushushu aphezulu, amatyathanga epolymer anamandla ashushu, nto leyo ekhokelela kwinqanaba eliphezulu lokushukuma kunye nokuncipha kwe-viscosity.
5. I-electrolyte concentration: I-viscosity ye-CMC ichaphazeleka kubukho be-electrolytes kwisisombululo. Kwiindawo eziphezulu ze-electrolyte, i-viscosity ye-CMC iyancipha ngenxa yokuba iiyoni ezikwisisombululo zinokusebenzisana namaqela e-carboxyl e-polymer kwaye zinciphise ukusebenzisana kwazo neemolekyuli zamanzi.

Ukuqukumbela, i-Sodium Carboxymethyl cellulose (CMC) i-polymer eguquguqukayo kakhulu ebonisa uluhlu olubanzi lweepropathi, ezibandakanya ukunyibilika, i-viscosity, i-rheology, ukuzinza, kunye neepropati zokwenza ifilimu. I-viscosity ye-CMC iphenjelelwa zizinto ezahlukeneyo, ezifana neqondo lokutshintshela, ukugxila, i-pH, ubushushu, kunye noxinzelelo lwe-electrolyte. Ukuqonda le miba kubalulekile ekwandiseni ukusebenza kwe-CMC kwizicelo ezahlukeneyo.